<template>
  <div>
    <div class="editor" ref="editor" :style="styles"></div>
    <input type="file" ref="imageFile" @change="getFile($event)"
           class="add-file-right-input"  style="display: none" accept="image/*">

    <input type="file" ref="videoFile" @change="getVideoFile($event)"
           class="add-file-right-input-video" style="display: none"  accept="video/*">

<!--    style="display: none"-->

  </div>
</template>

<script>
  import Quill from "quill";
  import "quill/dist/quill.core.css";
  import "quill/dist/quill.snow.css";
  import "quill/dist/quill.bubble.css";
  import {uploadFile} from "@/api/baseUtil";

  export default {
    name: "Editor",
    props: {
      /* 编辑器的内容 */
      value: {
        type: String,
        default: "",
      },
      /* 高度 */
      height: {
        type: Number,
        default: null,
      },
      /* 最小高度 */
      minHeight: {
        type: Number,
        default: null,
      },
    },
    data() {
      return {
        Quill: null,
        currentValue: "",
        options: {
          theme: "snow",
          bounds: document.body,
          debug: "warn",
          modules: {
            // 工具栏配置
            toolbar: {
              container: [
                ["bold", "italic", "underline", "strike"],       // 加粗 斜体 下划线 删除线
                ["blockquote", "code-block"],                    // 引用  代码块
                [{list: "ordered"}, {list: "bullet"}],       // 有序、无序列表
                [{indent: "-1"}, {indent: "+1"}],            // 缩进
                [{size: ["small", false, "large", "huge"]}],   // 字体大小
                [{header: [1, 2, 3, 4, 5, 6, false]}],         // 标题
                [{color: []}, {background: []}],             // 字体颜色、字体背景颜色
                [{align: []}],                                 // 对齐方式
                ["clean"],                                       // 清除文本格式
                ["link", "image", "video"]                       // 链接、图片、视频
              ],
              handlers: {
                'image': (value => {
                  if (value) {
                    document.querySelector('.add-file-right-input').click()
                  } else {
                    this.quill.format('image', false);
                  }
                }),
                // 'video': (value => {
                //   if (value) {
                //     document.querySelector('.add-file-right-input-video').click()
                //   } else {
                //     this.quill.format('video', false);
                //   }
                // }),
              }
            }
          },
          placeholder: "请输入内容",
          readOnly: false,
        },
      };
    },
    computed: {
      styles() {
        let style = {};
        if (this.minHeight) {
          style.minHeight = `${this.minHeight}px`;
        }
        if (this.height) {
          style.height = `${this.height}px`;
        }
        return style;
      },
    },
    watch: {
      value: {
        handler(val) {
          if (val !== this.currentValue) {
            this.currentValue = val === null ? "" : val;
            if (this.Quill) {
              this.Quill.pasteHTML(this.currentValue);
            }
          }
        },
        immediate: true,
      },
    },
    mounted() {
      this.init();
    },
    beforeDestroy() {
      this.Quill = null;
    },
    methods: {
      init() {
        const editor = this.$refs.editor;
        this.Quill = new Quill(editor, this.options);
        this.Quill.pasteHTML(this.currentValue);
        this.Quill.on("text-change", (delta, oldDelta, source) => {
          const html = this.$refs.editor.children[0].innerHTML;
          const text = this.Quill.getText();
          const quill = this.Quill;
          this.currentValue = html;
          this.$emit("input", html);
          this.$emit("on-change", {html, text, quill});
        });
        this.Quill.on("text-change", (delta, oldDelta, source) => {
          this.$emit("on-text-change", delta, oldDelta, source);
        });
        this.Quill.on("selection-change", (range, oldRange, source) => {
          this.$emit("on-selection-change", range, oldRange, source);
        });
        this.Quill.on("editor-change", (eventName, ...args) => {
          this.$emit("on-editor-change", eventName, ...args);
        });
      },
      getFile(event) {
        let that = this;
        let file = event.target.files;
        if (file.length > 0) {
          let formData = new FormData();
          formData.append("file", file[0]);
          uploadFile(formData).then(response => {
            if (response.code === "200") {
              that.handleSuccess(process.env.VUE_APP_BASE_API+response.fileName);
              that.$refs.imageFile.value = ''
            }
          });
        }
      },
      handleSuccess(res) {
        let quill = this.Quill;
        let length = quill.getSelection()==null? quill.selection.savedRange.index:quill.getSelection().index;
        quill.insertEmbed(length, 'image', res);
        quill.setSelection(length + 1);
      },
      getVideoFile(event) {
        let that = this;
        let file = event.target.files;
        if (file.length > 0) {
          let formData = new FormData();
          formData.append("file", file[0]);
          uploadFile(formData).then(response => {
            if (response.code === "200") {
              that.handleVideoSuccess(process.env.VUE_APP_BASE_API+response.fileName);
              that.$refs.videoFile.value = ''
            }
          });
        }
      },
      handleVideoSuccess(res) {
        let quill = this.Quill;
        let length = quill.getSelection()==null? quill.selection.savedRange.index:quill.getSelection().index;
        quill.insertEmbed(length, 'video', res);
        quill.setSelection(length + 1);
      },





    },
  };
</script>

<style>
  .editor, .ql-toolbar {
    white-space: pre-wrap !important;
    line-height: normal !important;
  }

  .quill-img {
    display: none;
  }

  .ql-snow .ql-tooltip[data-mode="link"]::before {
    content: "请输入链接地址:";
  }

  .ql-snow .ql-tooltip.ql-editing a.ql-action::after {
    border-right: 0px;
    content: "保存";
    padding-right: 0px;
  }

  .ql-snow .ql-tooltip[data-mode="video"]::before {
    content: "请输入视频地址:";
  }

  .ql-snow .ql-picker.ql-size .ql-picker-label::before,
  .ql-snow .ql-picker.ql-size .ql-picker-item::before {
    content: "14px";
  }

  .ql-snow .ql-picker.ql-size .ql-picker-label[data-value="small"]::before,
  .ql-snow .ql-picker.ql-size .ql-picker-item[data-value="small"]::before {
    content: "10px";
  }

  .ql-snow .ql-picker.ql-size .ql-picker-label[data-value="large"]::before,
  .ql-snow .ql-picker.ql-size .ql-picker-item[data-value="large"]::before {
    content: "18px";
  }

  .ql-snow .ql-picker.ql-size .ql-picker-label[data-value="huge"]::before,
  .ql-snow .ql-picker.ql-size .ql-picker-item[data-value="huge"]::before {
    content: "32px";
  }

  .ql-snow .ql-picker.ql-header .ql-picker-label::before,
  .ql-snow .ql-picker.ql-header .ql-picker-item::before {
    content: "文本";
  }

  .ql-snow .ql-picker.ql-header .ql-picker-label[data-value="1"]::before,
  .ql-snow .ql-picker.ql-header .ql-picker-item[data-value="1"]::before {
    content: "标题1";
  }

  .ql-snow .ql-picker.ql-header .ql-picker-label[data-value="2"]::before,
  .ql-snow .ql-picker.ql-header .ql-picker-item[data-value="2"]::before {
    content: "标题2";
  }

  .ql-snow .ql-picker.ql-header .ql-picker-label[data-value="3"]::before,
  .ql-snow .ql-picker.ql-header .ql-picker-item[data-value="3"]::before {
    content: "标题3";
  }

  .ql-snow .ql-picker.ql-header .ql-picker-label[data-value="4"]::before,
  .ql-snow .ql-picker.ql-header .ql-picker-item[data-value="4"]::before {
    content: "标题4";
  }

  .ql-snow .ql-picker.ql-header .ql-picker-label[data-value="5"]::before,
  .ql-snow .ql-picker.ql-header .ql-picker-item[data-value="5"]::before {
    content: "标题5";
  }

  .ql-snow .ql-picker.ql-header .ql-picker-label[data-value="6"]::before,
  .ql-snow .ql-picker.ql-header .ql-picker-item[data-value="6"]::before {
    content: "标题6";
  }

  .ql-snow .ql-picker.ql-font .ql-picker-label::before,
  .ql-snow .ql-picker.ql-font .ql-picker-item::before {
    content: "标准字体";
  }

  .ql-snow .ql-picker.ql-font .ql-picker-label[data-value="serif"]::before,
  .ql-snow .ql-picker.ql-font .ql-picker-item[data-value="serif"]::before {
    content: "衬线字体";
  }

  .ql-snow .ql-picker.ql-font .ql-picker-label[data-value="monospace"]::before,
  .ql-snow .ql-picker.ql-font .ql-picker-item[data-value="monospace"]::before {
    content: "等宽字体";
  }
</style>
